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author | rsc <devnull@localhost> | 2003-11-23 18:19:35 +0000 |
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committer | rsc <devnull@localhost> | 2003-11-23 18:19:35 +0000 |
commit | 9df487d720a59bf8cb0dc4ccffc30ad8eb48256a (patch) | |
tree | 9267054a81cefbb9a8ae3847ae0ddfc1567bd961 /src/libhttpd/urlunesc.c | |
parent | b6afd33e2f23953f00c6fac6b5d45946a9113654 (diff) | |
download | plan9port-9df487d720a59bf8cb0dc4ccffc30ad8eb48256a.tar.gz plan9port-9df487d720a59bf8cb0dc4ccffc30ad8eb48256a.tar.bz2 plan9port-9df487d720a59bf8cb0dc4ccffc30ad8eb48256a.zip |
add libhttpd
Diffstat (limited to 'src/libhttpd/urlunesc.c')
-rw-r--r-- | src/libhttpd/urlunesc.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/libhttpd/urlunesc.c b/src/libhttpd/urlunesc.c new file mode 100644 index 00000000..ae8ca81f --- /dev/null +++ b/src/libhttpd/urlunesc.c @@ -0,0 +1,58 @@ +#include <u.h> +#include <libc.h> +#include <bin.h> +#include <httpd.h> + +/* go from url with escaped utf to utf */ +char * +hurlunesc(HConnect *cc, char *s) +{ + char *t, *v, *u; + Rune r; + int c, n; + + /* unescape */ + u = halloc(cc, strlen(s)+1); + for(t = u; c = *s; s++){ + if(c == '%'){ + n = s[1]; + if(n >= '0' && n <= '9') + n = n - '0'; + else if(n >= 'A' && n <= 'F') + n = n - 'A' + 10; + else if(n >= 'a' && n <= 'f') + n = n - 'a' + 10; + else + break; + r = n; + n = s[2]; + if(n >= '0' && n <= '9') + n = n - '0'; + else if(n >= 'A' && n <= 'F') + n = n - 'A' + 10; + else if(n >= 'a' && n <= 'f') + n = n - 'a' + 10; + else + break; + s += 2; + c = (r<<4)+n; + } + *t++ = c; + } + *t = '\0'; + + /* convert to valid utf */ + v = halloc(cc, UTFmax*strlen(u) + 1); + s = u; + t = v; + while(*s){ + /* in decoding error, assume latin1 */ + if((n=chartorune(&r, s)) == 1 && r == Runeerror) + r = (uchar)*s; + s += n; + t += runetochar(t, &r); + } + *t = '\0'; + + return v; +} |